Phase 11 · Postgame west and legendary cleanup

Giant Chasm and Kyurem — Pokémon Black & White Walkthrough

Cross the crater, trigger the blizzard field, and catch Kyurem.

By Damodar Sharma Updated July 10, 2026 Walkthrough

Phase 11 · Postgame west and legendary cleanup

Cross the crater, trigger the blizzard field, and catch Kyurem.

Version

Season

Method

Walkthrough

Set the route. Read the item requirements below before entering; bring Surf, Strength, Waterfall, or the Dowsing Machine when a source direction names it.
Clear in order. Battle the listed trainers from top to bottom, healing before any boss card or required story fight.
Sweep the map. Collect visible items first, then make a second Dowsing Machine pass for every hidden tile.
Finish the table. Apply the version and season filters before hunting; time of day never changes Black/White wild slots.

Pokémon locations

Each area below has its own table, split by encounter method. Rates merge every slot for a species and are shown per season; a single centered rate means all four seasons match. Time of day never changes Black/White wild slots. Identical Black and White slots share one row with both game markers.

Giant Chasm — Giant Chasm

Pokémon	Games	Levels	Rate by season				Notes
Pokémon	Games	Levels	Spring	Summer	Autumn	Winter	Notes
Grass / cave floor
Piloswine	BW	47 or 49	25%				Post-game.
Golbat	BW	47	20%				Post-game.
Delibird	BW	48	10%				Post-game.
Jynx	BW	48 or 50	10%				Post-game.
Lunatone	BW	50	10%				Post-game.
Sneasel	BW	48	10%				Post-game.
Solrock	BW	50	10%				Post-game.
Boldore	BW	49	5%				Post-game.
Dust cloud
Excadrill	BW	47-50	100%				Post-game.
Surf
Basculin	BW	25-55	70%				Post-game.
Basculin	BW	25-55	70%				Post-game.
Seel	BW	25-55	30%				Post-game.
Rippling water (Surf)
Seel	BW	25-60	60%				Post-game.
Basculin	BW	25-60	30%				Post-game.
Basculin	BW	25-60	30%				Post-game.
Dewgong	BW	35-70	10%				Post-game.
Fishing — Super Rod
Poliwag	BW	35-55	45%				Post-game.
Basculin	BW	35-55	40%				Post-game.
Basculin	BW	35-55	40%				Post-game.
Poliwhirl	BW	35-55	15%				Post-game.
Rippling water (Super Rod)
Poliwhirl	BW	35-70	55%				Post-game.
Basculin	BW	35-60	40%				Post-game.
Basculin	BW	35-60	40%				Post-game.
Poliwrath	BW	45-70	5%				Post-game.

Giant Chasm — Giant Chasm (forest cave)

Pokémon	Games	Levels	Rate by season				Notes
Pokémon	Games	Levels	Spring	Summer	Autumn	Winter	Notes
Grass / cave floor
Piloswine	BW	57 or 59	25%				Post-game.
Golbat	BW	57	20%				Post-game.
Delibird	BW	58	10%				Post-game.
Jynx	BW	58 or 60	10%				Post-game.
Lunatone	BW	60	10%				Post-game.
Sneasel	BW	58	10%				Post-game.
Solrock	BW	60	10%				Post-game.
Boldore	BW	59	5%				Post-game.
Dust cloud
Excadrill	BW	57-60	100%				Post-game.
Surf
Basculin	BW	25-55	70%				Post-game.
Basculin	BW	25-55	70%				Post-game.
Seel	BW	25-55	30%				Post-game.
Rippling water (Surf)
Seel	BW	25-60	60%				Post-game.
Basculin	BW	25-60	30%				Post-game.
Basculin	BW	25-60	30%				Post-game.
Dewgong	BW	35-70	10%				Post-game.
Fishing — Super Rod
Poliwag	BW	35-55	45%				Post-game.
Basculin	BW	35-55	40%				Post-game.
Basculin	BW	35-55	40%				Post-game.
Poliwhirl	BW	35-55	15%				Post-game.
Rippling water (Super Rod)
Poliwhirl	BW	35-70	55%				Post-game.
Basculin	BW	35-60	40%				Post-game.
Basculin	BW	35-60	40%				Post-game.
Poliwrath	BW	45-70	5%				Post-game.
Static / one only
Kyurem	BW	75	100%				Post-game.

Giant Chasm — Giant Chasm (forest)

Pokémon	Games	Levels	Rate by season				Notes
Pokémon	Games	Levels	Spring	Summer	Autumn	Winter	Notes
Grass / cave floor
Clefairy	BW	52 or 54	30%				Post-game.
Piloswine	BW	52 or 54	25%				Post-game.
Ditto	BW	53 or 55	15%				Post-game.
Lunatone	BW	55	10%				Post-game.
Metang	BW	53 or 55	10%				Post-game.
Solrock	BW	55	10%				Post-game.
Dark grass / double grass
Clefairy	BW	62 or 64	30%				Post-game.
Piloswine	BW	62 or 64	25%				Post-game.
Ditto	BW	63 or 65	15%				Post-game.
Lunatone	BW	65	10%				Post-game.
Metang	BW	63 or 65	10%				Post-game.
Solrock	BW	65	10%				Post-game.
Rustling grass
Audino	BW	52-55	85%				Post-game.
Clefable	BW	55	5%				Post-game.
Mamoswine	BW	55	5%				Post-game.
Metagross	BW	55	5%				Post-game.

Giant Chasm — Giant Chasm (outside)

Pokémon	Games	Levels	Rate by season				Notes
Pokémon	Games	Levels	Spring	Summer	Autumn	Winter	Notes
Grass / cave floor
Tangela	BW	47 or 49	25%				Post-game.
Swellow	BW	47	20%				Post-game.
Golbat	BW	48 or 50	15%				Post-game.
Absol	BW	48 or 50	10%				Post-game.
Drifblim	BW	49	10%				Post-game.
Lunatone	BW	48	10%				Post-game.
Solrock	BW	48	10%				Post-game.
Dark grass / double grass
Tangela	BW	57 or 59	25%				Post-game.
Swellow	BW	57	20%				Post-game.
Golbat	BW	58 or 60	15%				Post-game.
Absol	BW	58 or 60	10%				Post-game.
Drifblim	BW	59	10%				Post-game.
Lunatone	BW	58	10%				Post-game.
Solrock	BW	58	10%				Post-game.
Rustling grass
Audino	BW	47-50	80%				Post-game.
Emolga	BW	48	10%				Post-game.
Crobat	BW	50	5%				Post-game.
Tangrowth	BW	50	5%				Post-game.

Trainers

No ordinary placed Trainerentry is assigned to this page. Scripted boss variants appear in boss cards when applicable.

Items and gifts

Star Piece ×2Black / White

* Northeast of southwest corner, on the other side of a Strength boulder (requires Strength) * Behind a Strength boulder east of the northwest corner (requires Strength)

Requires: Strength, Strength

Comet ShardBlack / White

Behind a Strength boulder near the northeastern corner (requires Strength)

Requires: Strength

Max ElixirBlack / White

In the southwest corner

Max PotionBlack / White

Next to trees north from the entrance

ReviveBlack / White

Next to a batch of dark tall grass in the northwest

CarbosBlack / White

Between two rocks south of the northern wall

TM IceBlack / White

Southwest of the stairs leading to Kyurem's area

Full HealBlack / White

South of the stairs leading to Kyurem's area, near a patch of dark grass in the eastern part of the forest

Max ReviveBlack / White

In the southeastern corner of the forest

TM PsychicBlack / White

In the southern part of the forest, near the path that leads to the center

Fire GemBlack / White